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(11) | EP 1 193 417 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Drum brake device having a shoe clearance over-adjustment prevention apparatus |
| (57) A shoe clearance over-adjustment prevention apparatus employable to various types
of automatic shoe clearance adjustment devices and drum brakes and designable to have
a common thermo-sensitive member suitable for mass production. The thermo-sensitive member (60) is sandwiched between the strut (20) and the brake lever (30) to cause a functional engagement, so that, if the brake temperature reaches a predetermined value or range, the strut (20) is pushed toward the brake shoe (12), whereby the automatic shoe clearance adjustment operation is disabled. |